Diamond - Coating of Metal Alloys

[360024]这项研究的目的是开发一种新的中间层，使金刚石涂层的质量比以前更高，可以沉积在钢基体上。由于化学不相容和热膨胀系数的巨大差异，钢是一种特别难以在其上沉积高质量金刚石涂层的材料。重点是在金刚石涂层和钢基体之间使用金属中间层来减轻这些困难。涂层试样的力学性能将被确定。摩擦和磨损测试将与涂层开裂应力、界面断裂韧性和基体屈服强度的测量一起进行。＊＊＊

9360024 Drory This objective of this research is to develop a novel interlayer to allow diamond coatings of higher quality than has previously been achieved to be deposited on steel substrates. Steels present a particularly difficult material for depositing high quality diamond coatings onto because of chemical incompatibility and the large difference in thermal expansion coefficients. The emphasis in the proposed work is to use a metal interlayer between the diamond coating and the steel substrate to alleviate these difficulties. The mechanical properties of coated test specimens will be determined. Friction and wear testing will be performed along with measurement of the coating cracking stress, interface fracture toughness and substrate yield strength. ***